How can a GPS malfunction affect an IFR flight?

A GPS malfunction can significantly impact an IFR flight by hindering navigation, as it is a primary means of providing navigational information. If GPS is lost or becomes unreliable, pilots must revert to traditional navigation methods, such as VOR (VHF Omnidirectional Range) or NDB (Non-Directional Beacon) systems, which may require additional workload and skill. It also means that pilots need to be adept at using their aircraft’s instruments to maintain situational awareness and navigate safely, particularly in complex airspace or during poor weather conditions.

This transition to traditional navigation is crucial because GPS typically provides more accurate real-time position data than other methods, and with its loss, the pilot’s margin for error can increase. Consequently, understanding and being prepared for such an occurrence is vital for maintaining safety and ensuring the flight can proceed without significant deviation or confusion.